[enhancement] stock balance page

erpnext/stock/page/stock_balance/stock_balance.html

@@ -0,0 +1,32 @@
+<div class="padding">
+	<div class="row" style="margin-bottom: 15px;">
+		<div class="col-sm-8"></div>
+		<div class="col-sm-4">
+			<button class="btn btn-default btn-xs pull-right btn-order"
+				data-value="desc" style="margin-left: 10px;">
+					<span class="octicon octicon-triangle-down"></span></button>
+			<div class="dropdown pull-right" data-value="actual_qty">
+			  <a class="text-muted dropdown-toggle small"
+			  	data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
+			    {{ __("Actual quantity") }}
+			  </a>
+			  <ul class="dropdown-menu">
+			    <li><a class="option" data-value="actual_qty">
+					{{ __("Actual quantity") }}</a></li>
+			    <li><a class="option" data-value="reserved_qty">
+					{{ __("Reserved for sale") }}</a></li>
+			    <li><a class="option" data-value="reserved_qty_for_production">
+					{{ __("Reserved for manufacturing") }}</a></li>
+			    <li><a class="option" data-value="projected_qty">
+					{{ __("Projected quantity") }}</a></li>
+			  </ul>
+			</div>
+		</div>
+	</div>
+	<div class="result list-group">
+
+	</div>
+	<div class="more hidden" style="padding-top: 15px;">
+		<a class="btn btn-default btn-xs btn-more">More</a>
+	</div>
+</div>

erpnext/stock/page/stock_balance/stock_balance.js

@@ -0,0 +1,109 @@
+{% include 'erpnext/stock/doctype/item/item_dashboard.html' %}
+
+frappe.pages['stock-balance'].on_page_load = function(wrapper) {
+	var page = frappe.ui.make_app_page({
+		parent: wrapper,
+		title: 'Stock Balance',
+		single_column: true
+	});
+
+	var warehouse_field = page.add_field({
+		fieldname: 'wareshouse',
+		label: __('Warehouse'),
+		fieldtype:'Link',
+		options:'Warehouse',
+		change: function() {
+			page.start = 0;
+			refresh()
+		}
+	});
+
+	var item_field = page.add_field({
+		fieldname: 'item_code',
+		label: __('Item'),
+		fieldtype:'Link',
+		options:'Item',
+		change: function() {
+			page.start = 0;
+			refresh()
+		}
+	});
+
+	page.start = 0;
+	page.sort_by = 'actual_qty';
+	page.sort_order = 'desc';
+
+	page.content = $(frappe.render_template('stock_balance')).appendTo(page.main);
+	page.result = page.content.find('.result');
+
+	// more
+	page.content.find('.btn-more').on('click', function() {
+			page.start += 20;
+			refresh();
+		});
+
+	// order
+	page.content.find('.btn-order').on('click', function() {
+		var btn = $(this);
+		var order = $(this).attr('data-value')==='desc' ? 'asc' : 'desc';
+
+		btn.attr('data-value', order);
+		page.sort_order = order;
+		btn.find('.octicon')
+			.removeClass('octicon-triangle-' + (order==='asc' ? 'down' : 'up'))
+			.addClass('octicon-triangle-' + (order==='desc' ? 'down' : 'up'));
+		page.start = 0;
+		refresh();
+	});
+
+	// select field
+	page.content.find('.dropdown a.option').on('click', function() {
+		page.sort_by = $(this).attr('data-value');
+		page.content.find('.dropdown .dropdown-toggle').html($(this).html());
+		refresh();
+	});
+
+	var refresh = function() {
+		var item_code = item_field.get_value();
+		var warehouse = warehouse_field.get_value();
+		frappe.call({
+			method: 'erpnext.stock.page.stock_balance.stock_balance.get_data',
+			args: {
+				item_code: item_code,
+				warehouse: warehouse,
+				start: page.start,
+				sort_by: page.sort_by,
+				sort_order: page.sort_order,
+			},
+			callback: function(r) {
+				render(r.message);
+			}
+		});
+	}
+
+	var render = function(data) {
+		if(page.start===0) {
+			page.max_count = 0;
+			page.result.empty();
+		}
+
+		var context = erpnext.get_item_dashboard_data(data, page.max_count);
+		page.max_count = context.max_count;
+
+		// show more button
+		if(data.length===21) {
+			page.content.find('.more').removeClass('hidden');
+
+			// remove the last element
+			data.splice(-1);
+		} else {
+			page.content.find('.more').addClass('hidden');
+		}
+
+		$(frappe.render_template('item_dashboard', context)).appendTo(page.result);
+
+	}
+
+	refresh();
+
+}

erpnext/stock/page/stock_balance/stock_balance.json

@@ -0,0 +1,22 @@
+{
+ "content": null, 
+ "creation": "2016-04-21 04:59:00.141546", 
+ "docstatus": 0, 
+ "doctype": "Page", 
+ "idx": 0, 
+ "modified": "2016-04-21 05:04:30.228526", 
+ "modified_by": "Administrator", 
+ "module": "Stock", 
+ "name": "stock-balance", 
+ "owner": "Administrator", 
+ "page_name": "stock-balance", 
+ "roles": [
+  {
+   "role": "Stock User"
+  }
+ ], 
+ "script": null, 
+ "standard": "Yes", 
+ "style": null, 
+ "title": "Stock Balance"
+}

erpnext/stock/page/stock_balance/stock_balance.py

@@ -0,0 +1,14 @@
+from __future__ import unicode_literals
+
+import frappe
+
+@frappe.whitelist()
+def get_data(item_code=None, warehouse=None, start=0, sort_by='actual_qty', sort_order='desc'):
+	filters = {}
+	if item_code:
+		filters = {'item_code': item_code }
+	if warehouse:
+		filters = {'warehouse': warehouse }
+	return frappe.get_list("Bin", filters=filters, fields=['item_code', 'warehouse',
+		'projected_qty', 'reserved_qty', 'reserved_qty_for_production', 'actual_qty'],
+		order_by='{0} {1}'.format(sort_by, sort_order), start=start, page_length = 21)